Results 51 to 60 of about 28,086 (247)

A Highly Selective DNA Sensor Based on Graphene Oxide-Silk Fibroin Composite and AuNPs as a Probe Oligonucleotide Immobilization Platform

Acta Chimica Slovenica, 2018
In this study, a simple and novel electrochemical biosensor based on a glassy carbon electrode (GCE) modified with a composite of graphene oxide (GO) - silk fibroin nanofibers (SF) and gold nanoparticles (MCH/ssDNA/AuNPs/SF/GO/GCE) was developed for ...
Ali Benvidi, Zohreh Abbasi, Marzieh Dehghan Tezerjani, Maryam Banaei, Hamid Reza Zare, Hossein Molahosseini, Shahriar Jahanbani   +6 more
doaj   +1 more source

A highly parallel DTT/MB-DNA/Au electrochemical biosensor for trace Hg monitoring by using configuration occupation approach and SECM

Ecotoxicology and Environmental Safety, 2022
Environmental pollution and medicine safety have aroused increasing public concerns due to human health. Amongst various contaminants, mercury is of special attention owing to their environmental persistence and biogeochemical recycling and ecological ...
Dandan Kong, Xinyue Li, Yang Tang, Ming Sui, Jinping Li, Yonggui Ma, Gaofeng Wang, Wei Gu, Xuegang Guo, Meihua Yang   +9 more
doaj   +1 more source

AFFINITY BIOSENSOR BASED ON SCREEN-PRINTED ELECTRODE MODIFIED WITH DNA FOR GENOTOXIC COMPOUNDS DETECTION

Indonesian Journal of Chemistry, 2010
An electrochemical method for the detection of the genotoxic compounds using a DNA-modified electrode was developed. This electrode was successfully used for the electrochemical detection of genotoxic compounds in water samples.
Bambang Kuswandi
doaj   +1 more source

Femtomolar and locus-specific detection of N6-methyladenine in DNA by integrating double-hindered replication and nucleic acid-functionalized MB@Zr-MOF

Journal of Nanobiotechnology, 2021
In this study, a novel electrochemical biosensor was constructed for ultrasensitive and locus-specific detection of N6-Methyladenine (m6A) in DNA using double-hindered replication and nucleic acid-coated methylene blue (MB)@Zr-MOF.
Qingyuan Zheng, Tong Wang, Xinmin Li, Husun Qian, Xintong Bian, Xingrong Li, Huijie Bai, Shijia Ding, Yurong Yan   +8 more
doaj   +1 more source

A cellulose-based bioassay for the colorimetric detection of pathogen DNA [PDF]

, 2014
Cellulose-paper-based colorimetric bioassays may be used at the point of sampling without sophisticated equipment. This study reports the development of a colorimetric bioassay based on cellulose that can detect pathogen DNA.
Goyal, Madhu, Kukol, A., Rossiter, Sharon, Saikrishnan, Deepika   +3 more
core   +1 more source

Chitosan modified graphite electrodes developed for electrochemical monitoring of interaction between daunorubicin and DNA

Sensing and Bio-Sensing Research, 2019
Chitosan (CHIT) modified single-use electrodes were developed for the first time in the present study and applied for electrochemical monitoring of anticancer drug-DNA interaction. Under this aim, pencil graphite electrode (PGE) was used as the biosensor
Gulsah Congur, Ece Eksin, Arzum Erdem
doaj   +1 more source

Electrochemical Detection of Sequence-Specific DNA with the Amplification of Gold Nanoparticles

International Journal of Electrochemistry, 2011
A sensitive electrochemical DNA biosensor was prepared based on mercaptoacetic acid (MAA)/gold nanoparticles (AuNPs) modified electrode. Probe DNA (NH2-DNA) was covalently linked to the carboxyl group of MAA in the presence of 1-ethyl-3-(3 ...
Yuzhong Zhang, Zhen Wang, Yuehong Wang, Lei Huang, Wei Jiang, Mingzhu Wang   +5 more
doaj   +1 more source

An electrochemical biosensor for the rapid genetic identification of Musang King durian

Scientific Reports, 2022
More than 200 different cultivars of durian exist worldwide but Durio zibethinus or Musang King (MK) is the most premium and prized durian fruit among the recommended varieties. Early identification of this premium variety is critical to protect from non-
Mohammad Malek Faizal Azizi, Sohana Romeli, Hazana Razali, Eda Yuhana Ariffin, Muhammad Afiq Tajol Ariffin, Lee Yook Heng, Norliza Abu-Bakar, Han Yih Lau   +7 more
doaj   +1 more source

Horseradish and soybean peroxidases: comparable tools for alternative niches? [PDF]

, 2006
Horseradish and soybean peroxidases (HRP and SBP, respectively) are useful biotechnological tools. HRP is often termed the classical plant heme peroxidase and although it has been studied for decades, our understanding has deepened since its cloning and ...
Alonso Lomillo, Alpeeva, Azevedo, Azevedo, Azevedo, Barry J. Ryan, Bruns, Bódalo, Campanella, Castilho, Castillo, Chen, Cho, Ciarán Ó’Fágáin, Colas, Dachs, Dai, Dai, dos Santos, Dotsikas, Dunford, Duroux, Ferapontova, Ferapontova, Ferapontova, Folkes, Gajhede, Gazaryan, Gazaryan, Gijzen, Gray, Gustafsson, Henriksen, Hoffmann, Howes, Howes, Howes, Hoyle, Hushpulian, Ignatenko, Jung, Kamal, Kamiya, Katz, Kazlauskas, Kenausis, Kim, Kim, Klibanov, Knutson, Konash, Kreiner, Lee, Lei, Li, Li, Lin, Lin, Lindgren, Liu, Luong, Mendive, Michizoe, Morawski, Morawski, Morgan, Morimoto, Mukai, Nagano, Neil Carolan, Newmyer, Newmyer, Nicell, Ozaki, Patel, Paul, Penalva, Poljaková, Rahman, Rauf, Rodriguez-Lopez, Rossiter, Sakharov, Schmitz, Schuvailo, Shipovskov, Smith, Smith, Song, Sun, Tafazoli, Tanaka, Teilum, Tupper, Tønning, van de Velde, van de Velde, Varnado, Veitch, Veitch, Veitch, Veitch, Verpoorte, Vreeke, Wandersman, Wang, Wang, Wanger, Welinder, Welinder, Welinder, Won, Woodard, Wu, Wuhrer, Yan, Yuan, Zhang, Zhang, Zhu   +119 more
core   +2 more sources

Nanodiamond Quantum Sensors for Probing Free Radical Biology

Advanced Functional Materials, EarlyView.
Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley   +1 more source